I have been doing ADA compliance professionally for a while. There is no magic on this one. There’s no existing solution that doesn’t require manual interference because it requires context. Human context. It has to be understood to be understandable. There’s a few things you can do to improve overall accessibility but nothing in a suite. I specialize in InDesign and it’s probably the most powerful document solution going. But it requires a lot of work to meet the most basic of requirements.